"Well, we should be aware that brake failure is hypothetically possible if vanishingly unlikely, and it would be a huge deal if they did fail" is not the same as "Yeah our brakes have a known flaw that makes them exceptionally prone to failure lmao IDGAF ship it"
Clearly neither of those readings is a correct interpretation of the cited research.
Look folks, I know it offends your 2A inclinations, but this is a step in a legal action. One of the arguments made by any defendant in a case like this is "This was not a foreseeable risk". And that is directly and correctly refuted by the cited report. Period. And it's right that the media report on it.
Sig guns have a failure mode that is serious and impactful, and was aware of it when it sold the hardware.